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Home All issues Volume 603 (July 2017) A&A, 603 (2017) A133 Full HTML
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Table 4

Results of XCLASS LTE modeling for each of our sources.

G35.20 A G35.20 B1 G35.20 B2 G35.20 B3 G35.03 A
Species Lines Size T ex N col Lines Size T ex N col Lines Size T ex N col Lines Size T ex N col Lines Size T ex N col
CH3OH (ν = 0) 29 0.6 164 3.5 × 1018 28 0.3 234 6.9 × 1017 24 0.36 136 5.3 × 1017 33 0.35 155 6.2 × 1017 29 0.40 142 1.8 × 1018
CH3OH (ν12 = 1) 21 0.5 218 4.8 × 1018 24 0.36 153 1.2 × 1018 23 0.32 145 6.2 × 1017 24 0.36 189 9.8 × 1017 21 0.30 239 2.6 × 1018
CH3OH (ν12 = 2) 14 0.4 227 3.8 × 1018 18 0.18 154 2.2 × 1018 18 0.15 152 1.0 × 1018 19 0.20 172 1.8 × 1018 14 0.20 192 5.1 × 1018
13CH3OH 5 1.0 121 1.6 × 1017 6 0.3 113 3.9 × 1016 6 1.1 97 8.0 × 1015 7 1.20 89 1.6 × 1016 5 0.6 120 5.0 × 1016
CH318OH 4 1.1 121 4.4 × 1016 6 0.3 82 1.4 × 1016 4 0.9 75 1.4 × 1015 5 1.20 111 5.8 × 1015 4 1.2 130 1.0 × 1016
H2C18O 3 0.6 188 8.5 × 1014 4 0.3 41 5.7 × 1014 4 0.32 29 1.5 × 1015 4 1.09 125 4.2 × 1014 1 0.50 62 2.1 × 1014
CH3OCHO (ν = 0) 28 0.98 103 8.1 × 1016 38 0.5 285 4.5 × 1016 33 0.5 64 2.0 × 1016 31 0.59 67 2.7 × 1016 28 0.2 100 2.3 × 1015
CH3OCH3 10 0.34 229 3.7 × 1017 11 0.22 156 3.8 × 1017 8 0.4 67 1.3 × 1016 19 0.49 97 1.7 × 1017 10 0.7 150 8.3 × 1016
CH3CHO (ν = 0) 14 0.4 234 1.7 × 1016 19 0.33 206 7.0 × 1016 18 0.26 88 2.3 × 1015 20 1.16 170 2.1 × 1015 14 0.5 120 1.3 × 1015
CH3CHO (ν15 = 1) 7 1.1 278 5.5 × 1015 7 0.2 300.0 2.3 × 1014 4 ⋆ 13 0.56 224 1.4 × 1015 7 0.5 220 1.3 × 1015
CH3CHO (ν15 = 2) 4 0.7 295 4.3 × 1015 1 ⋆ 0 ⋆ 3 0.12 102 8.1 × 1014 0 ⋆
HCOOH 5 0.6 103 1.4 × 1016 4 0.3 156 1.1 × 1015 2 ⋆ 7 0.4 173 3.8 × 1015 5 0.7 100 5.0 × 1015
C2H5OH 30 0.8 281 7.1 × 1016 33 0.7 78 6.0 × 1015 33 0.12 297 1.0 × 1015 32 0.43 178 1.3 × 1016 30 0.4 150 4.9 × 1016
(CH2OH)2 23 0.6 172 3.5 × 1016 0 ⋆ 0 ⋆ 0 ⋆ 34 0.70 100 2.8 × 1016
NH2CHO 3 0.7 98 7.6 × 1015 3 0.3 50 5.7 × 1015 2 0.6 45 2.3 × 1014 4 0.3 53 1.6 × 1015 3 0.8 43 4.7 × 1015
NH213CHO 2 † 1.4 × 1014 2 † 1.0 × 1014 2 † 5.1 × 1012 2 † 5.1 × 1013 2 † 8.5 × 1013
CH3CN (ν = 0) 10 0.45 208 3.9 × 1016 9 0.32 129 7.2 × 1015 9 0.62 132 1.3 × 1015 10 0.35 208 6.5 × 1015 10 0.30 186 3.0 × 1016
CH3CN (ν8 = 1) 11 0.6 359 3.2 × 1016 5 0.29 283 3.5 × 1015 4 ⋆ 13 0.8 213 1.3 × 1015 11 0.30 216 3.6 × 1016
CH313CN 2 1.0 263 5.0 × 1014 4 0.7 262 2.0 × 1014 3 0.44 55 1.4 × 1014 9 0.7 118 5.4 × 1014 2 0.35 70 1.4 × 1015
CH2DCN 4 0.5 82.3 4.1 × 1015 7 0.1 180 3.0 × 1013 1 ⋆ 6 0.8 90 1.1 × 1015 1 ⋆
C2H5CN 13 0.9 125 1.5 × 1016 8 ⋆ 3 ⋆ 18 0.8 160 4.5 × 1014 13 0.5 78 5.0 × 1015
CH313CH2CN 2 † 6.9 × 1014 0 ⋆ 0 ⋆ 0 ⋆ 0 ⋆
13CH3CH2CN 1 † 6.9 × 1014 0 ⋆ 0 ⋆ 0 ⋆ 0 ⋆
CH3CHDCN 13 0.6 97 2.9 × 1015 0 ⋆ 0 ⋆ 0 ⋆ 0 ⋆
C2H3CN 6 0.6 77 1.3 × 1016 0 ⋆ 0 ⋆ 11 0.8 207 7.3 × 1014 0 ⋆
HCCCN (ν = 0) 1 1.2 176 1.7 × 1015 1 0.9 119 9.2 × 1014 1 0.8 122 2.0 × 1014 1 1.2 251 1.8 × 1015 1 0.6 140 2.3 × 1015
HC13CCN (ν = 0) 1 † 3.4 × 1013 0 ⋆ 1 ⋆ 1 † 3.8 × 1013 1 ⋆
HCC13CN (ν = 0) 0 † 3.4 × 1013 0 ⋆ 0 ⋆ 1 † 3.8 × 1013 0 ⋆
HCCCN (ν6 = 1) 1 0.6 200 3.1 × 1015 0 ⋆ 0 ⋆ 2 0.4 256 2.4 × 1015 0 ⋆
HCC13CN (ν6 = 1) 1 † 6.2 × 1013 0 ⋆ 0 ⋆ 1 † 5.4 × 1013 0 ⋆
HCCCN (ν7 = 1) 2 0.37 251 5.3 × 1015 3 0.8 219 5.8 × 1014 2 ⋆ 3 0.98 288 2.1 × 1015 2 0.8 194 5.9 × 1015
H13CCCN (ν7 = 1) 2 † 1.0 × 1015 0 ⋆ 0 ⋆ 2 † 4.6 × 1013 0 ⋆
HC13CCN (ν7 = 1) 1 † 1.0 × 1015 0 ⋆ 0 ⋆ 1 † 4.6 × 1013 0 ⋆
HCC13CN (ν7 = 1) 1 † 1.0 × 1015 1 ⋆ 0 ⋆ 2 † 4.6 × 1013 0 ⋆
HCCCN (ν7 = 2) 1 0.20 350 2.2 × 1015 0 ⋆ 0 ⋆ 4 0.35 473 1.3 × 1015 0 ⋆
H2CS 2 1.3 165 1.4 × 1016 2 2.0 230 3.3 × 1015 2 1.0 50 1.2 × 1015 2 0.9 87 6.1 × 1015 2 1.7 96 3.7 × 1015
H2C34S 1 † 5.3 × 1014 5 † 1.9 × 1014 6 † 8.9 × 1013 5 † 6.1 × 1014 0 ⋆
SO2 5 1.4 260 1.7 × 1016 5 1.44 279 3.3 × 1016 5 2.42 114 6.6 × 1015 5 1.3 288 3.9 × 1016 5 1.2 281 7.5 × 1016
33SO2 1 † 1.7 × 1014 1 † 2.5 × 1014 1 † 1.4 × 1014 2 † 1.9 × 1015 1 † 3.4 × 1015
34SO2 1 † 1.2 × 1014 1 † 1.2 × 1014 1 † 1.6 × 1014 1 † 1.3 × 1015 1 ⋆
CH2DOH ‡ 18 150 5.0 × 1016 35 140.0 9.0 × 1015 31 240.0 6.0 × 1015 32 160.0 1.5 × 1016 1
CH3OCHO (ν = 1) ‡ 8 120 1.9 × 1017 6 140.0 9.0 × 1015 4 8 4

Notes. Four columns are shown under each source name: 1) number of unblended or partially blended transitions per species detected; 2) modeled source size (′′); 3) excitation temperature (K); and 4) column density (cm-2). The errors on each value are shown in Appendix C. Star (⋆) symbols indicate that a species was not modeled in XCLASS for this peak. † indicates that this species was coupled to the main isotopologue for fitting and the isotope ratio was calculated keeping the source size and excitation temperature the same as the main isotope. The column density indicated in these cases reflects the best-fit isotope ratio. To improve the fits for various HC3N states, the 12C/13C isotope ratio was fixed at 50. ‡ these species were analyzed using Cassis because they were not yet incorporated in the XCLASS database.

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